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Income Taxes (Tables)

3 Months Ended

Mar. 31, 2012

Income Tax Expense (Benefit) [Abstract]

The following lists the earliest tax years open to examination by tax authorities where we have significant operations:




Jurisdiction		Periods
United States		2007
United Kingdom		2009
Norway		2001
Angola		2007
Nigeria		2006
Brazil		2006
Australia		2008
Canada		2008

- Definition

Tabular disclosure of income tax examinations that an enterprise is currently subject to or that have been completed in the current period typically including a description of the examination, the jurisdiction conducting the examination, the tax year(s) under examination, the likelihood of an unfavorable settlement, the range of possible losses, the liability recorded, the increase or decrease in the liability from the prior period, and any penalties and interest that have been recorded.

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